\begin{table}
\caption{Performance comparison (300 episodes, last 50 avg)}
\label{tab:compare}
\begin{tabular}{lrrl}
\toprule
Metric & Baseline & DQN & Improvement \\
\midrule
Average Daily Cost (¥) & 2541793.61 & 2350791.39 & 10.9% ↓ \\
Stock-out Rate (%) & 28.33 & 23.89 & 4.4pp ↑ \\
Service Level (%) & 71.67 & 76.11 &  \\
Inventory Turnover & 230.01 & 221.92 & -3.5% ↑ \\
Cost Variance & 9044203852074.88 & 8367955858905.02 & -7.5% ↓ \\
CVaR@5% (¥) & 8963450.00 & 12208166.67 & 36.2% ↓ \\
Gini Coefficient & 0.58 & 0.55 & -5.2% ↓ \\
Bullwhip Ratio & 6.74 & 5.22 & -22.6% ↓ \\
\bottomrule
\end{tabular}
\end{table}
